smaller pectoral muscle n.
A muscle with origin from the third to the fifth ribs, with insertion into the coracoid process of the scapula, with nerve supply from the anterior thoracic nerve, and whose action lowers the scapula or raises the ribs.
- Smaller psoas muscle
smaller psoas muscle n. An inconstant muscle with origin from the twelfth thoracic and the first lumbar vertebrae and the disk between them, with insertion into the iliopubic eminence, with nerve supply from the lumbar plexus, and whose action assists in the flexion of the lumbar spine.
adjective, smaller, smallest. 1. of limited size; of comparatively restricted dimensions; not big; little: a small box. 2. slender, thin, or narrow: a small waist. 3. not large as compared with others of the same kind: a small elephant. 4. (of letters) lowercase (def 1). 5. not great in amount, degree, extent, duration, value, etc.: […]
- Smallest cardiac vein
smallest cardiac vein n. Any of the numerous small venous channels that open directly into the chambers of the heart from the capillary bed in the cardiac wall.
- Smallest scalene muscle
smallest scalene muscle small·est scalene muscle (smô’lĭst) n. An occasional independent muscular fasciculus between the anterior scalene and the middle scalene muscles, having the same action and innervation.